williamson



(No Model.)

D. D. WILLIAMSON.

MARKER FOR LAWN TENNIS COURTS. No. 285,092. Patented Sept. 18, 1888.

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U'NirE STATES Enron.

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MARKER FOR LAWN-TENNIS COURTS.

SPECIFICATION forming part of Letters Patent No. 285,092, datedSeptember 18, 1883.

Application filed Julie 28,1883. (No model.)

appertains to make and use the same, when taken in connection with theaccompanying drawings, in which- Figure 1 is a perspective view thereof.Fig. 2 is a longitudinal section.

Heretofore and before this my invention it has been found impracticableto mark lawntennis courts and other like places with dry powder orpulverized material with accuracy and dispatch.

This my invention consists of feeding to the surface traversed a drypowdered =or pulverized material continuously in certain well-definedlines, in certain regulated quantities, the apparatus therefor, and thevarious combinations hereinafter specified and claimed.

The apparatus which I have found well adapted for the purpose ofcarrying out my invention is shown in the accompanying drawings, whereinthe box or trough A is made of wood or metal, having a rounded orsloping bottom downward toward the center. Beneath the center of the boxA is thecase or shield B, arranged lengthwise of the box. WVithin thecaseB, at or near the front end thereof, is arranged the wheel or pulley0, having the bearings of its axle in the sides of the case B.

WVithin the case B, at the other or opposite end thereof, is arrangedthe wheel or pulley D, having the bearings of its axle in the sides ofthe case B, the bearings of the axle of D being preferably in slots (1d, so that the pulley D may be adjusted back andforth therein. Thisadjustment may be accomplished.- by wedge-shaped pins E, which passthrough the top and bottom of the extension of the case B,

and bear on one side against the case and on the other against theaxle,and force it back and forth in the slots as the pins E may bedriven in or withdrawn. The continuous belt .or chain F passes about thepulleys O and D,

to receive about half the thickness of the belt I or chain F. Thepulleys are so arranged in the case B that the belt or chain F, passingaround under them, will pass over and nearly in contact with the bottomof the trough or box A. Holes are arranged at each end of the box A, sothat the belt or chain may pass in and out of the box under the bottom.The case B is extended over the pulleys O and D and chain F, exceptingfor a short distance near the pulley C, so that powdered material on thechain 1* and pulleys may be protected from the wind. The box ,A and caseB are mounted on an axle and the wheels G G, which wheels are free torevolve on the axle. The box hashandles H attached to it, by which itmay be pushed and guided. The box being mounted 011 the wheels G G, asshown, the pulley or wheel 0, encircled by the chain F, rests upon theground.

The mode of operation is as follows: The box A being filled or partiallyfilled with powdered or granulated material, theoperator takes 7 5 holdof the handles H, bearing down upon them, raises the wheel 0 and chain Ffrom the ground,-moves the marker to any convenient I place, when,raising his hands and the handles drawn through the box A, carrying withit a certain amount of the powdered or granulated S5 material in thebox, and leaving it on the ground it comes in contact with, making aclean, sharply-defined line,

I am aware that many devices have been made for the feeding of liquidcompounds in 0 lines, and that rollers and valves have been used forthat purpose, and do not wish to be understood as claiming any of these.

WVhat I do claim as my invention, and desire to secure by LettersPatent, is 9 5 1. The method of feeding to the surface traverseda drypowder or pulverized material c011- tinuously in defined lines and inregulated quantities, substantially as specified and set forth.

2. The combination, in a marker, of a box, A, and endless belt passingover the bottom and through openings in the end thereof, and aboutwheels or pulleys so held in a case as to bring the belt in contact withthe ground about Wheels or pulleys so held in a case as to substantiallyas specified. bring the belt in contact with the surface trav- 1o 3. Thecombination, in ainarker, of the posiersed, and the inclosing-case B,substantially tive-feed mechanism and inclosing-case B, subas specifiedand set forth.

stantially as specified and set forth. I DOUWVE D. WILLIAMSON.

4. The combination, in a marker, of a box, \Vitnesses: Y

A, and endless belt passing over the bottom and G. G.'FRELINGH'IUYSEN,

through openings in the ends thereof, and JOHN E. ELM'ENDORF,

